Volcano Watch: What are the Volcano Alert Level and Aviation Color Code?

  • USGS graphic Icons for the ground-based Volcano Alert Level and Aviation Color Code. Right now in Hawaii and American Samoa, Kīlauea is erupting and is at WATCH/ORANGE, Mauna Loa is in elevated unrest and is at ADVISORY/YELLOW, and the remaining six monitored volcanoes are at NORMAL/GREEN. An additional resource for Volcano Alert Levels and Aviation Color Codes is the USGS Fact Sheet FS2006-3139 (https://pubs.usgs.gov/fs/2006/3139/).

The U.S. Geological Survey Hawaiian Volcano Observatory sets the Volcano Alert Level and Aviation Color Code for volcanoes in Hawaii and American Samoa. Currently, Kilauea is erupting and is at WATCH/ORANGE, Mauna Loa is in elevated unrest and is at ADVISORY/YELLOW, and the remaining six monitored volcanoes are at NORMAL/GREEN.